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门式架 : 80 phrases in 11 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Bridge construction | 3 |
| Business | 1 |
| Electronics | 3 |
| Engineering geology | 1 |
| Hydroelectric power stations | 5 |
| Metallurgy | 2 |
| Nuclear and fusion power | 1 |
| Oil / petroleum | 1 |
| Technology | 61 |
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